Mozilla Foundations released Thunderbird 1.5 Release Candidate 1, the new feature of this build is the improved support of Podcasting and a built-in phishing detector.

What's new in Thunderbird 1.5: (selected)

• Podcasting and other RSS Improvements.
• Automated update to streamline product upgrades.
• Sort address autocomplete results by how often you send e-mail to each recipient.
• Spell check as you type.
• Built in phishing detector to help protect users against email scams.
• Deleting attachments from messages.
• Integration with server side spam filtering.
• Reply and forward actions for message filters.
• Auto save as draft for mail composition.
• Filters for Global Inbox.
• Improvements to product usability including redesigned options interface, and SMTP server management.
• Many security enhancements.

(screenshot of Thunderbird 1.5 RC 1 on Mac OS X 10.4.3 "Tiger" on a real Mac.)

Download Thunderbird 1.5 RC 1,
Thunderbird 1.5 RC 1 (Mac OS X)
Thunderbird 1.5 RC 1 (Windows)
Thunderbird 1.5 RC 1 (Linux)

_________________
Netscape 9 | SillyDog701: Switch guide | Browser Archive | MozInfo701
MacCentre701 | AntBlog701
Don't steal music.